For what it's worth Superposition has problems with GLIB too. The launcher works but not the demo itself and the only one to do that.

./superposition: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.14' not found (required by ./superposition)
./superposition: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.14' not found (required by /root/benchmarks/Unigine_Superposition-1.0/bin/./libUnigine_x64.so)